Ge Precision Healthcare LLC

Douyin Vision Co., Ltd.

Boe Technology Group Co., Ltd.

Fuzhou Boe Optoelectronics Technology Co., Ltd.

General Electric Company

Tsinghua University

Beijing Baidu Netcom Science and Technology Co., Ltd.

China Petroleum & Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Capitalbio Corporation

Xin Xie

Yu Liu

Dongliang Yang

Kai Wang

Chunlai Xiao

Haoyang Xing

Tingting Song

Jianye Ning

Hao Qiu

Xianchao Wu

Yang Wang

Xinyu Zhang

Hui Chen

Anqi Wang

Qiaoni Wang

Mingyu Yang

Chunmei Yang

Xingming Chen

Zhijian Chen

Kehong Chen

Guangcai Yuan

Xu Zhang

Li Wang

Ming Xu

Chen Hui Xu

Ying Liu

Jing Cheng

Ce Ning

Lu Bai

Hehe Hu

Lizhong Wang

Liping Lei

Nianqi Yao

Ruifeng Li

Yabin Lin

Depu Chen

Yuxiang Zhou

Qinghua Duan

Sheng Tong

Zuoxin Huang

Weiyang Fei

Zhiqiang Wu

Shihao Xin

Lihua Wang

Hong Gu

Shijian Luo

Yuezhen Qi

Zhaoyi Zhou

Yifang Huang

Baoquan Sun

Xu Teachers College Of Prof Tehcnology Zhang

An impedance tuner in a magnetic resonance system include at least one of an amplitude tuning circuit and a phase tuning circuit. The amplitude tuning circuit includes M serially-connected amplitude tuners. Each amplitude tuner includes at least one microwave transmission line and a first switch circuit connected in parallel, wherein the first switch circuit controls the at least one microwave transmission line to be in an on state or an off state, respectively, and the value of M is a positive integer greater than or equal to 1. The phase tuning circuit includes a phase tuner, and the phase tuner includes P second microwave transmission lines and a second switch circuit, wherein the second switch circuit controls the P second microwave transmission lines to be in an on state or an off state, respectively, and the value of P is a positive integer greater than or equal to 2.

Impedance tuner, magnetic resonance system, transmission apparatus, and transmission method

A method, apparatus, device and storage medium for multimedia content shooting is provided. The method comprises displaying a first shooting page comprising a first shooting window for displaying a first preview of a first scene captured by a first camera of a terminal device. The method further comprises in response to the first camera completing shooting of a first multimedia content item, displaying, in the graphical user interface, a second shooting page comprising a second shooting window and a first content window, the second shooting window displaying a second preview of a second scene captured by a second camera, the first content window displaying the first multimedia content item. The method further comprises in response to at least one predetermined condition being satisfied, shooting a second multimedia content item by the second camera; and generating a third multimedia content item based on the first and second multimedia content items.

Method, apparatus, device and storage medium for image shooting

According to embodiments of the present disclosure, a method, apparatus, device and storage medium for content presentation are provided. The method comprises presenting, in a first display region of a content presentation page of an application, at least a portion of a first set of content items along a first arrangement orientation. The method further comprises presenting, in a second display region of the content presentation page of the application different from the first display region, at least a portion of a second set of content items along a second arrangement orientation different from the first arrangement orientation.

Method, apparatus, device and storage medium for content presentation

A radio-frequency power output device includes a cooling plate, a temperature detection module, and a control module. The cooling plate is provided with a first circuit board and a second circuit board respectively on two opposite sides thereof, and the first circuit board and the second circuit board are provided with a first radio-frequency power amplification circuit and a second radio-frequency power amplification circuit, respectively. The temperature detection module is used to obtain the temperature of the first circuit board and the temperature of the second circuit board. The control module controls, based on the temperature of the first circuit board, the first radio-frequency power amplification circuit to output a radio-frequency power signal at a target temperature, and controls, based on the temperature of the second circuit board, the second radio-frequency power amplification circuit to output a radio-frequency power signal at the target temperature.

Radio-frequency power output device and method for magnetic resonance system

According to embodiments of the present disclosure, a method, apparatus, device and storage medium for image shooting are provided. The method comprises presenting a first shooting page in an asynchronous shooting mode. The first shooting page includes a first shooting window for presenting a first scene captured by a first camera of a terminal device. The method further comprises in response to the first camera completing shooting of a first image, presenting a second shooting page comprising a second shooting window and a first image window. The second shooting window presents a second scene captured by a second camera different from the first camera. The first image window presents the first image. The method further comprises capturing a second image by the second camera while the second shooting page being presented. In this way, flexible and interesting image shooting experience is provided.

A display substrate and a display panel are provided, the display substrate includes a first gate driver circuit and a second gate driver circuit that are respectively arranged on a first side and a second side of a display region; the first gate driver circuit includes a plurality of first shift register units arranged in a first direction, each first shift register unit includes a first thin film transistor; the second gate driver circuit includes a plurality of second shift register units arranged in the first direction, each second shift register unit includes a second thin film transistor having the same function as the first thin film transistor; an average turn-on current of at least one first thin film transistor is I, and an average turn-on current of at least one second thin film transistor is I, I>I.

Display substrate and display panel

Provided in an embodiment of the present application are a magnetic resonance imaging system and a transmission apparatus and a transmission method. The method comprises: generating and outputting a pulse signal by a transmission controller; amplifying the pulse signal by a radio-frequency amplifier; transmitting, by a signal processor, the signal amplified by the radio-frequency amplifier to a transmit coil of the magnetic resonance imaging system; and generating frequency offset lookup information for bandwidth compensation of the entire transmission apparatus according to bandwidth data of the transmission controller, the radio-frequency amplifier, and the signal processor; wherein the frequency offset lookup information is used to control the transmission controller to generate output power. Thus, the method can use the frequency offset lookup information to perform digital pre-distortion processing of a power amplifier, and can also improve the bandwidth performance of the entire transmission apparatus and improve the quality of magnetic resonance images.

Magnetic resonance imaging system and transmission apparatus and transmission method

According to embodiments of the present disclosure, a method, apparatus, device and storage medium for content presentation are provided. The method comprises presenting, in a first display region of a content presentation page of an application, a first set of contents provided by a first user in a first size. The method further comprises presenting a second set of contents provided by at least one second user in a second display region of the content presentation page different from the first display region in a second size different from the first size. The first user and the second user are associated users in the application. In this way, the content provided by the first user can be presented at the same time as the content provided by the associated user associated with the first user, so as to provide more rich and interesting content presentation.

Embodiments of the present application provide a magnetic resonance system and a transmission apparatus, a transmission method, and a pre-scanning method. The apparatus includes: a signal output unit used to generate and output a pulse signal; a radio-frequency amplifier used to amplify the pulse signal; a signal processing unit used to transmit, to a transmit coil of the magnetic resonance system, the signal amplified by the radio-frequency amplifier, receive and adjust a phase of the feedback signal, and output the phase-adjusted feedback signal to the signal output unit; and a determination unit used to acquire amplitude values of the feedback signal at different phases, and determine a forward power and/or a reverse power according to the amplitude values of the feedback signal at the different phases.

Magnetic resonance system and transmission apparatus, transmission method, and pre-scanning method

Provided in the present invention are a linear compensation method for a radio frequency amplifier and a magnetic resonance imaging system. The linear compensation method for a radio frequency amplifier includes determining a working voltage of the radio frequency amplifier, determining a corresponding linear compensation value based on the working voltage, and performing linear compensation on the radio frequency amplifier based on the linear compensation value.

Linear compensation method and apparatus for radio frequency amplifier and magnetic resonance imaging system

A filter debugging method, a device, an electronic apparatus and a readable storage medium are provided. The filter debugging method includes: step S: inputting a current hole parameter and a current index value of a filter into a policy network which is pre-trained; step S: determining, by the policy network, a target hole to be polished of the filter, according to the current hole parameter and the current index value of the filter; step S: controlling a mechanical arm to polish the target hole of the filter; and step S: determining whether the filter is qualified according to an index value of the polished filter; in a case that the filter is qualified, ending a process including the steps Sto S; in a case that the filter is unqualified, performing the steps Sto Scircularly until the filter is qualified.

Filter debugging method, device, electronic apparatus and readable storage medium

The present invention relates to an RF transmit system and method, MRI system and a pre-scan method and medium thereof. The RF transmit system comprises: an RF output unit, for generating and outputting an RF pulse signal; an RF amplifier, for amplifying the RF pulse signal; and a signal processing unit, for communicating the amplified RF pulse signal to an RF transmit coil of the MRI system and outputting a feedback signal to the RF output unit, wherein the RF output unit generates a linearity compensation control signal based on the feedback signal and a predetermined feedback signal-linearity compensation value-relationship, so as to carry out linearity compensation for the RF pulse signal outputted by the RF output unit. The RF transmit method corresponds to the above noted system and the MRI system comprises the above noted RF transmit system. The pre-scan method comprises the RF transmit method. Instructions recorded by the medium may execute the above noted RF transmit method and pre-scan method.

RF transmit system and method, MRI system and pre-scan method and storage medium thereof

A radio-frequency power converter and a radio-frequency transmission system for magnetic resonance imaging are provided in embodiments of the present invention. The radio-frequency power converter comprises a printed circuit board, the printed circuit board comprises a first circuit layer, a ground layer, and one or a plurality of intermediate layers located between the first circuit layer and the ground layer. A plurality of planar spiral inductors connected in parallel are formed on the first circuit layer. One ends of the plurality of inductors are connected to each other and respectively connected to one end of a first capacitor, the other ends of the plurality of inductors are respectively connected to one ends of a plurality of second capacitors, and the other ends of the plurality of second capacitors are all grounded.

Radio-frequency power converter and radio-frequency transmission system for magnetic resonance imaging

A display system includes: a display screen having a first display area; a processor configured to modulate laser beams to be emitted from a laser projector according to a pre-stored holographic image data source to obtain modulated laser beams; the laser projector configured to project the modulated laser beams to create a first holographic image in front of the first display area; and at least one photodetector configured to collect first gesture information about a first gesture through which the first holographic image is controlled by a viewer. The processor is further configured to generate a first control signal according to the first gesture information, and re-modulate the laser beams to be emitted from the laser projector, so as to create a second holographic image corresponding to the first control signal.

Display system

The present invention provides a planar balun and a multi-layer circuit board. The planar balun formed on the multi-layer circuit board comprises: a first winding with at least one turn, which is formed in a first conductive layer, and has a first lead and a second lead serving as a first balanced end and a second balanced end of the balun respectively; a second winding with at least one turn, which is formed in a second conductive layer separated from the first conductive layer by at least a first insulating layer, and has a third lead and a fourth lead, wherein the third lead is connected to a ground potential, and the fourth lead serves as an unbalanced end of the balun; and a first balancing capacitor, which is connected between a selected portion near a center of the first winding and the ground potential.

Planar balun and multi-layer circuit board

Growing community of inventors

Beijing, China

Xin Xie